Borrowing it
Nothing to install: this file belongs to postio-uk/postio-integrations. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/postio-uk/postio-integrations/master/CLAUDE.mdgit clone --depth 1 https://github.com/postio-uk/postio-integrationsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/instructions/postio-uk/postio-integrations/claude-md)<a href="https://agentmods.dev/instructions/postio-uk/postio-integrations/claude-md"><img src="https://agentmods.dev/badge/instructions/postio-uk/postio-integrations/claude-md/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/instructions/postio-uk/postio-integrations/claude-md"><img src="https://agentmods.dev/badge/instructions/postio-uk/postio-integrations/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.01675 | $0.01675 |
| Opus 5.5 | $0.00670 | $0.00670 |
| Sonnet 5.5 | $0.00335 | $0.00335 |
| Haiku 4.5 | $0.00168 | $0.00168 |
Grade A, and why
postio-integrations CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 142 lines — stays where its author put it; the contents beside it link to each section on GitHub.
postio-integrations — agent notes
Operational notes for coding agents working in this repo.
Stack
- pnpm workspace rooted at
packages/. Each subdirectory underpackages/<name>/is an independently publishable npm package with its ownpackage.json. - Node 22+. ESM only. TypeScript 5.x.
openapi-typescriptfor type generation. - All public packages are MIT-licensed.
Build commands
# from packages/
pnpm install
pnpm -r run build # build every package
pnpm -F @postio/api-types run build # build one package
pnpm -F "@postio/address-finder-bundled..." run build
# build a package and its workspace deps
# (the `<x>...` suffix is load-bearing —
# pnpm 10 reads it as "x and its deps"
# in topological order; the prefix
# `...<x>` form just matches `x`)
Branch + release model
stage— working branch.master— push triggers the CI publish / deploy workflows. They are idempotent: same version twice is a no-op.
@postio/api-types tracks the spec version lockstep — the version
in packages/api-types/package.json should match the
@postio/openapi version it pins as a dev dependency.
Other packages have independent SemVer; bump
packages/<name>/package.json#version when you intend a release.
Sibling deps must be "workspace:^", never a pinned registry
version. @postio/core carried "@postio/api-types": "1.0.2" until
2026-08-12 and had been silently building its types against a stale
published api-types instead of the one in this repo — so a field
removed from the spec still appeared in core's and
address-finder-bundled's generated .d.ts after a full rebuild. If a
type change doesn't propagate, check this first.
Workflows
release-packages.yml— on master push underpackages/**, walks every workspace package and runspnpm publishfor any whose version is new on npm. Always usepnpm publish(notnpm publish) soworkspace:dep ranges resolve at publish time —npm publishships the literalworkspace:^string.deploy-cdn-worker.yml— on push undercdn-worker/**, runswrangler deploy(or--env stage).deploy-cdn-bundles.yml— on push underpackages/address-finder*/**, builds the bundled package and uploads to the CDN's R2 bucket.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago Changed · +11 lines · +248 tokens per session a6acdb1a357f
- 1mo ago Changed · +42 lines · +497 tokens per session 88aa8c77312d
- 2mo ago First seen · 89 lines · 930 tokens per session scan A 50556ef7baab
postio-integrations CLAUDE.md is an instructions file published in the GitHub repository postio-uk/postio-integrations (0 stars, last pushed 14d ago), licensed MIT. It adds 1,675 tokens to every session, about $0.0067 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
postio-integrations CLAUDE.md compared with instructions from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| postio-integrations CLAUDE.mdpostio-uk/postio-integrations | Instructions file | 0 | 14d ago | MIT | A | 1,675 | Claude Code |
| vscode buildNext.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 9,719 | GitHub Copilot |
| next.js AGENTS.mdvercel/next.js | Instructions file | 143k | yesterday | MIT | A | 7,461 | Codex, OpenCode |
| langchain AGENTS.mdlangchain-ai/langchain | Instructions file | 149k | yesterday | MIT | A | 4,680 | Codex, OpenCode |
| vscode oss-third-party-notices.instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 5,516 | GitHub Copilot |
| vscode copilot-instructions.mdmicrosoft/vscode | Instructions file | 195k | yesterday | MIT | A | 3,093 | GitHub Copilot |
| deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness | Instructions file | 274k | 2d ago | MIT | A | 4,313 | Codex, OpenCode |